ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
5-47
5.10.2 End Bell and Main Bearing.
a. Removal.
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
(3)
Remove rear housing panel. Refer to paragraph 4.7.5.
(4)
Remove bolts (5, Figure 5-9), lockwashers (6), top cover (7), and louvered
covers (12) from end bell (16).
CAUTION
The end bell supports the main rotor, thus the rotor will drop on the stator
once the end bell is removed. Prior to proceeding, bar engine by using
center bolt on harmonic balancer, TM 9-2815-260-24, until two main rotor
poles are vertical in generator stator. Having the rotor in this position will
limit the amount of drop, otherwise damage to rotor and/or stator could
occur.
(5)
Loosen lead clamp assembly (3, Figure 5-9) clamping generator leads at front of generator
housing (33). Ensure wires F1 and F2 are free to slide in and out of generator housing.
(6)
Remove bolts (13) and lockwashers (14) and washer (15) from end bell (16).
(7)
Remove end bell (16), with exciter stator (22) attached.
CAUTION
If bearing needs to be removed for any reason, always install new bearing.
Main bearing is easily damaged when removed from rotor shaft. Failure to
install a new bearing can cause damage to equipment.
(8)
Using bearing puller, remove bearing (17) from main rotor shaft (23). Discard bearing.
b. Installation.
CAUTION
If bearing needs to be removed for any reason, always install new bearing.
Main bearing is easily damaged when removed from rotor shaft. Failure to
install a new bearing can cause damage to equipment.
(1)
Heat new bearing (17, Figure 5-9) to expand diameter to fit on main rotor (23) shaft. Install new
bearing (17) on main rotor (23) shaft. Ensure bearing is seated squarely against shaft shoulder
by applying pressure to inner race only.
(2)
Position bearing (17) in end bell (16).
